Dumping-car



(No Model.) I: r v I COTE.

, DUMPING GARr No. 377,424. Patented Feb. 7, 1 888.

N PETERS, Pholwlitlmgrapimr. Wnhinglcm. 0.6.

UNITED, STATES PATENT OFFICE.

FRED corn, OF MINNEAPOLIS, MINNESOTA.

DUMPlNG-CAR.

SPECIFICATION forming part of Letters Patent No. 377,424, dated February 7,1888;

' Application filed June 18,1887. Serial No. 24;.134. (to model.)

To all whom it mag "concern:

Be it known that I, FRED COTE, a subjectof the Queen of Great Britain and Ireland, resid-' ing at Minneapolis, in the countyof Hennepin and State of Minnesota, have invented certain new and useful Improvements in Dump- Cars, of which the following is a specification.

This invention relates to the dump-cars employed by contractors and others in removing earth from place to place; and it consists in the manner of forming the connection betweenthe frame or truck and the earth-carrying box,

whereby the box is prevented from being.

thrown from the trucks by the tilting of the box in discharging the load, as hereinafter shown and described, and specifically pointed out in the claims.

In'the drawings. Figure l isa cross-sectional view of the dump-box and a portion of the truck-frame, and Fig. 2 is a side view of the same. Fig. 3 is a view similar to Fig. 1, showing the position of the parts when the dump-box is tilted to one side in discharging its load. Figs. 4., 5, 6, 7, and 8 are enlarged details of the parts forming the coupling between the dump-box and the truckframe.

A represents the dump-box, which is made in the ordinary manner, and B represents the manner. shown, as they are so well known and form no I truck-frame, supported upon the wheels by which the car is adapted to be moved from place to place 'on the tracks in the ordinary The wheels and tracks are not and are each provided with a circular head, a,

and projecting pins 1), and the bottom of the dump-box is provided with asocket,E, adapted to rest upon the bracket D, as shown, with its interior fitting the circular head a.

that the dump-box is free to roll upon the bracket as a center.

The socket E is formed to fit the head a closely, so

Inside the socket Ejare curved grooves d, into which thepins b fit, as'shown. Each of the grooves d is formed 'with'an opening, d,

at its center, so that when the dump-box with the socket attached is set. down over the and allow the socket to pass down into their seats, as in Figs. 1, 2, and 3; but whenrthe dump-box is tilted over to one side in discharging its load the grooves d will'move. I

along the pins b and cause the opening-d to pass beyond the pins,.and thus efi'ectually'prefrom off the brackets.

By this simple device the dump-box is ef:

fectually locked to the brackets when the.

car is being discharged of .its load, while at the same time the two parts are easily disconnected when required; but they will-never become .60 vent the dump-box from being lifted upward disconnected when being dumped, which is the result sought to be attained.

, Many severe accidents and much annoyance have often resulted from thedurnp-box being l disconnected from the trucks when the box is suddenly tilted over, as in Fig. 3; but with my simple constructionthe'two parts cannot byany means become disconnected when thebox is tilted.

Having'thus described my invention, what I claim as new is- In a dump-car,the combinationof the dumpbox A, provided with the sockets E,having grooves d, with openings (1?, truck-frames B,

having brackets D, with circularheads a,

adapted to fit said sockets, and with pins b,

adapted to enter said grooves, whereby said 7 box and truck-frame are separable only when said dump-box is in a horizontal position, sub

stantially as andforthe purpose set forth. f

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses. v v v FRED corn.

Witnesses: I

' (LN. WooDwARD, H. S. WEBSTER. 

